4 is missing I assume. But I could be wrong
Step-by-step explanation:
so 5/9(86-32) then you take
86-32=(54)
now it look like C=5/9=(54)
C=30
so c=30 is the answer :)
Step-by-step explanation:
The cylinder is a closed figure which consists of two circular ends. If r is the radius and h is the height of the cylinder, then its surface area is given by :

or

We also know that, surface area = perimeter×height
So, the surface area of the cylinder is the product of circumference of the circle and height of the cylinder.
I think C would be for number 11
A is for 12.
x/2 < - 18